Clark School Home UMD

ISR News Story

Confidentiality Preserving Rank-Ordered Search (ISR IP)

ISR intellectual property available to license

Inventors: Ashwin Swaminathan, Yinian Mao, Guan-Ming Su, Hongmei Gou, Avinash Varna, Shan He, Min Wu, Douglas Oard

Description
This invention has introduced a new paradigm for information search and retrieval in large-scale encrypted databases. We present techniques to securely rank-order the documents to retrieve the most relevant document(s) from an encrypted database based on search queries. We have defined three representative usage scenarios depending on the security requirement and available communication bandwidth, and developed techniques to perform efficient and secure search in each case.

The proposed methods are highly secure (relying on well-studied cryptographic encryption and hashing primitives), accurate (comparable to conventional searching systems designed for unencrypted data), and efficient (in terms of computational complexity and communication bandwidth).

The invention has a wide range of applications in numerous fields that would require or benefit from privacy-preserving search and multiple clearance/access levels. This includes, but is not limited to, out-sourcing data storage to 3rd party service provider, data management in government and intelligent operations, enabling scholarly study of sensitive data, facilitating document discovery process in litigation. Overall, the invention forms a primary building block to facilitate various knowledge discovery tasks for which security and privacy is a major requirement.

For more information
If you would like to license this intellectual property, have questions, would like to contact the inventors, or need more information, contact ISR External Relations Director Jeff Coriale at coriale@umd.edu or 301.405.6604.

Find more ISR IP
You can go to our main IP search page to search by research category or faculty name. Or view the entire list of available IP on our complete IP listing page.

ISR-IP-Wu ISR-IP-security ISR-IP-databases

Related Articles:
Component Forensics of Visual Sensors and Devices (ISR IP)
Data Hiding in Compiled Program Binaries for Enhancing Computer System Performance (ISR IP)
Effective and Efficient Collusion-Resistant Fingerprinting for Multimedia (ISR IP)
Curve-Based Data Hiding for Protecting Map Document (ISR IP)
Methods for Estimating the Intrinsic Pattern of Fingerprint Scanners and Using it in Biometric Authentication and for Cryptographic Key Generation (ISR IP)
Method for Efficient Source Authentication for Multicast Communications in Hybrid Satellite/Wireless Networks (ISR IP)
Method for Performance-Aware Security of Unicast Communications in Hybrid Satellite Networks (ISR IP)
Method and Implementation for Key Generation and Replacement Using Markov Models (ISR IP)
Method and Implementation for Wireless Message Authentication (ISR IP)
Indexing RDF and Temporal RDF Databases (ISR IP)

June 23, 2007


Prev   Next

 

 

For more information, contact ISR External Relations Director
Jeff Coriale at coriale@umd.edu or 301.405.6604.

Current Headlines

Ephremides is PI for new ONR 'age of information' grant

UMD Hosts Third Technica with over 800 Students from Around the Country

Srivastava Named Clark School Inaugural Associate Dean for Graduate Affairs

Pamela Abshire elected IEEE Fellow

Shihab Shamma elected IEEE Fellow

Wu Named AAAS Fellow

Baras, Kenyon, Hughes Network Systems win MIPS Global Impact Award

New microsystems detect, treat bacterial biofilms that cause post-operative infections

Srivastava named Clark School Dean for Graduate Affairs

DW News Interviews Khaligh on Electric Vehicle Trends

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar